Validity and Score Interpretation of the 12-item Psoriatic Arthritis Impact of Disease: An Analysis of Pooled Data from Two Phase 3 Trials of Bimekizumab in Patients with Psoriatic Arthritis
RMD Open 2024;10(1):e003548 doi: 10.1136/rmdopen-2023-003548
This study reports that the PsAID-12 total score and individual PsAID items capturing disease concepts important to patients with PsA demonstrated robust psychometric properties.
Investigators examined the psychometric performance of PsAID-12 total and individual item scores in patients with PsA and to estimate score change thresholds and scores corresponding to different levels of symptom/impact severity.
These results support use of the PsAID-12 as a fit-for-purpose PRO to inform assessment of treatment effects in patients with active PsA.
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